| Name | Isoetes echinospora nothovar. truncata A. A. Eaton |
| Authorship | A. A. Eaton |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Isoetes echinospora Durieu |
| Citation | 1901 Working List N. Amer. Pterid. 10, 27 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Isoetes echinospora nothovar. truncata A. A. Eaton |
| Identification made in | [no date] (1) |